| Date | IP Address |
| 2019-08-10 | 104.91.232.142 (ClassC) |
| 2021-03-23 | 104.119.189.51 (ClassC) |
| 2024-02-20 | 23.44.175.173 (ClassC) |
| 2024-09-13 | 23.192.230.140 (ClassC) |
| 2025-05-02 | 23.192.230.153 (ClassC) |
| 2025-08-05 | 23.192.230.148 (ClassC) |
| 2025-08-12 | 23.216.147.234 (ClassC) |
| Date | Domain | IP |
| hongkong.regenthotels.com | 2025-04-15 | 35.194.236.124 |
| qap.regenthotels.com | 2024-02-20 | 23.44.175.173 |
| www.regenthotels.com | 2014-10-14 | 93.184.221.133 |
| qap.www.regenthotels.com | 2024-02-22 | 23.192.230.148 |
| identity.regenthotels.com | 2025-02-23 | 23.55.167.27 |